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AuthorBhagyaraj, Sneha
AuthorKrupa, Igor
Available date2023-06-26T04:54:19Z
Publication Date2020
Publication NameBiomolecules
ResourceScopus
URIhttp://dx.doi.org/10.3390/biom10121632
URIhttp://hdl.handle.net/10576/44818
AbstractEnvironmental remediation using green approaches for addressing various pollution-related issues, especially water pollution, is in high demand. Here, we designed an environmentally friendly, low-cost, and stable sodium alginate-halloysite clay composite aerogel (SAHA) for oil/water separation via a two-step synthesis procedure, including ionic crosslinking and freeze-drying. The as-prepared SAHA aerogels were characterized in detail by scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), and Fourier transformation infrared (FT-IR) spectroscopy. Characterization of the SAHA aerogels revealed a three-dimensional porous microstructure with uniformly dispersed halloysite nanotubes (HA) within the alginate matrix. The elemental composition of the hydrogels investigated using energy dispersive X-ray spectrometry (EDX) revealed the presence of minerals, such as magnesium, sodium, aluminum, and silicon in the SAHA aerogels. The presence of a hydrophilic alginate matrix combined with these unique morphological characteristics resulted in SAHA aerogels with underwater oleophobicity and excellent oil/water separation efficiency (up to 99.7%). The ease of fabrication, excellent oil/water separation, and multiple performances make the SAHA aerogel an interesting candidate for practical applications in water recycling.
SponsorFunding: This research was funded by Qatar University through Qatar University Collaborative Grant QUCG-CAM-19/20-2.
Languageen
PublisherMDPI AG
SubjectAlginate aerogel
Halloysite
Nanocomposite
Oil/water separation
TitleAlginate-halloysite nanocomposite aerogel: Preparation, structure, and oil/water separation applications
TypeArticle
Pagination1-16
Issue Number12
Volume Number10
dc.accessType Open Access


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